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We have obtained the hyperfine structure components of P(84) 5-5 transition with a SNR of 1000 at 1 s time constant. The diode laser is frequency stabilized to the hyperfine component o of the saturated absorption signal.

我们得到了此跃迁超精细结构成分的讯噪比是1000(在1秒的时间常数)；此二极体雷射稳频在o超精细结构成分上，所得到的频率稳定性优於10 kHz。

Methods Tb-ABR and ASSR were performed on 10 normal hearing adults (20 ears); the response thresholds at 0.5,1,2 and 4 kHz were recorded for analysis.

方法对10名(20耳)听力正常青年人进行短纯音ABR和ASSR反应阈测试，分别记录0.5、1、2和4kHz的反应阈，比较这两种不同测试方法所得反应阈的特点及相关性。

Methods 103 ears (67 patients) with hearing loss of different degrees were rested with ASSR and pure tone audiometry, the correlations and differences between the thresholds of ASSR and pure tone audiometry at 0.5, 1, 2 and 4 kHz were analyzed.

对67例（l03耳）不同听力损失耳分别行ASSR与纯音测听检查，比较ASSR分别在0.5、1、2、4kHz频率处的反应阈值与纯音听阈的相关性及差值。

This type of transmission mode, is in use by nearly all modern submarine-communication VLF band, 3 – 30 kHz, transmitter facilities.

这种传输模式，基本被所有的现代甚低频潜艇通信系统所使用，频率为3 - 30千赫。

R peak of BNT-BKT ceramics doped with Nd_2O_3 became wider than the basic ceramics without Nd_2O_3. All the ceramics are relaxor ferroelectrics proved by Curie-Weiss law measured at 10 kHz. Otherwise, d_(33) and K_p took on increasing trend and then decreasing trend.

Nd_2O_3掺杂后的陶瓷介电常数整体趋势随Nd_2O_3掺杂量的增高而降低，介电峰呈现更加宽化的趋势，并且从10kHz下的居里-外斯关系图得出在研究范围内所有陶瓷样品均为驰豫铁电体；随Nd_2O_3含量的增加，d_(33)和K_p呈先升高后下降的趋势。

All the CeO_2 doped ceramics were relaxor ferroelectrics proved by Curie-Weiss law measured at 1 kHz, however, the relaxor ferroelctric properties of ceramics decresed with CeO_2 content increasing.

此外，从1kHz下的居里-外斯定律关系图得出，所有陶瓷样品均为驰豫铁电体，但是随着CeO_2含量的增加，驰豫性降低。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。